Rev. I
Troubleshooting
8-13
MR Series Technical Reference Manual
❏
Check whether the touch panel can now function. If the touch panel can function, check the
customer’s touch panel settings for any errors. If the touch panel cannot function, the cause
may be a faulty connection or a problem with the individual unit or the connector itself.
Follow the procedures below.
1. Confirm whether replacing the touch panel unit circuit board solves the problem.
2. Confirm whether replacing the touch panel unit solves the problem.
3. Confirm whether replacing the main circuit board solves the problem.
Note:
You can confirm whether the touch panel circuit board operates correctly by checking the LEDs (red
and green) on the touch panel circuit board.
Touch Panel Unable to Respond Correctly to Commands
❏
Follow the procedures below.
1. Check the touch panel driver settings. (Refer to Chapter 4.)
Note:
When you set up Windows 2000 / XP, perform the double-click settings during installation of the
driver. Refer to Chapter 4.)
2. Confirm whether calibrating the touch panel solves the problem. (Refer to Chapter 7.)
3. Reinstall the touch panel driver after uninstalling it.
❏
Check whether the touch panel can now function. If the touch panel can function, check the
customer’s touch panel settings for any errors. If the touch panel cannot function, the cause
may be a faulty connection or a problem with the individual unit or the connector itself.
Follow the procedures below.
1. Confirm whether replacing the touch panel unit circuit board solves the problem.
2. Confirm whether replacing the touch panel unit (1057) solves the problem.
3. Confirm whether replacing the main circuit board solves the problem.
Red LED
Green LED
Possible cause
On
Flashing
Operating normally.
On
Off
Possible failure of touch panel controller.
Off
On
—
Off
Off
Power is not supplied to the DM-M820.
If the power is supplied to the DM-M820, the fuse on the
touch panel circuit board or LCD circuit board may
burned out.
Summary of Contents for DM-M820
Page 1: ...Technical Reference Manual MR Series English 403308709 Rev I EPSON ...
Page 2: ......
Page 20: ...xviii Rev I ...
Page 42: ...2 8 Setup for the IM 800 and the DM M820 Rev I ...
Page 50: ...3 8 Hardware Specifications Rev I ...
Page 178: ...5 38 BIOS Functions Rev I ...
Page 216: ...8 26 Troubleshooting Rev I ...
Page 323: ......
Page 324: ...SEIKO EPSON CORPORATION EPSON ...